使用防止javascript错误控制台.log在旧浏览器上

Posted 2021-02-24

This will detect if console.log is available in browser and display the message. Otherwise will display as alert message

//Can use empty catch {} if don't want inadvertent alert message to be seen on production site 
 
function trace(s) {
  try { console.log(s) } catch (e) { alert(s) }
};
 
 
//Can use empty catch {} if don't want inadvertent alert message to be seen on production site 
 
function trace(s) {
  try { console.log(s) } catch (e) {}
};